Châteauneuf-les-Martigues, located in the Bouches-du-Rhône department, boasts a history tracing back to ancient times, evidenced by archaeological findings suggesting Roman occupation of the area.

Geographically, the town benefits from its strategic position on the Étang de Berre, a large saltwater lagoon, contributing to its historical economic activities and shaping its unique landscape.

The population of Châteauneuf-les-Martigues has experienced significant growth in recent decades, driven primarily by its proximity to Marseille and its appealing residential environment, attracting people seeking a balance between urban access and a quieter lifestyle.

The local economy is diversified, with a historical dependence on fishing and salt production from the Étang de Berre gradually shifting towards more modern sectors like tourism, services, and small-scale industries.

Historically, Châteauneuf-les-Martigues was under the influence of powerful regional families and the Archbishopric of Arles, shaping its political and social landscape throughout the medieval and early modern periods.

One notable landmark is the Château de Châteauneuf-les-Martigues, which stands as a testament to the town's rich history, although much of the original structure has been modified and restored over the centuries.

Although not directly a UNESCO World Heritage site, its proximity to Marseille and the Calanques National Park gives residents easy access to recognized historical and natural treasures of the region.

The town celebrates its Provençal heritage through local festivals and markets, showcasing traditional crafts, regional cuisine, and folk music, enriching the cultural fabric of the community.

While not directly involved in national political events, Châteauneuf-les-Martigues' residents participate in regional and national elections, contributing to the broader democratic processes of France.

The local economy benefits from the tourism sector, particularly due to the Étang de Berre, which attracts water sports enthusiasts, bird watchers, and nature lovers, supporting local businesses.

Traditional Provençal cuisine plays a significant role in the cultural identity of Châteauneuf-les-Martigues, with local restaurants and markets emphasizing fresh, seasonal ingredients and traditional recipes.

The town's urban planning reflects a blend of historic architecture and modern development, aiming to preserve its character while accommodating the needs of a growing population.

Although not a hub for scientific innovation, Châteauneuf-les-Martigues benefits from its proximity to Marseille, a major research and education center, allowing residents access to scientific advancements.

The local dialect, a variant of Provençal, is still spoken by some residents, particularly older generations, contributing to the preservation of linguistic diversity within the region.

Efforts are continually made to protect the ecological integrity of the Étang de Berre, ensuring the sustainable management of its resources and preserving the biodiversity of this unique aquatic environment.